Dependabot update

Dependabot update

CLA: trivial

(deps): Bump dtolnay/rust-toolchain

Bumps [dtolnay/rust-toolchain](https://github.com/dtolnay/rust-toolchain) from 6d653acede28d24f02e3cd41383119e8b1b35921 to 0f44b27771c32bda9f458f75a1e241b09791b331.
- [Release notes](https://github.com/dtolnay/rust-toolchain/releases)
- [Commits](https://github.com/dtolnay/rust-toolchain/compare/6d653acede28d24f02e3cd41383119e8b1b35921...0f44b27771c32bda9f458f75a1e241b09791b331)

---
updated-dependencies:
- dependency-name: dtolnay/rust-toolchain
  dependency-version: 0f44b27771c32bda9f458f75a1e241b09791b331
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Reviewed-by: Saša Nedvědický <sashan@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/29125)